Home / 80,779,396,533.30-121,169,094,799.95-38,937,983,721.30

Finding the Fourth Proportional to 80,779,396,533.30, 121,169,094,799.95 and 38,937,983,721.30

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Solution

The fourth proportional to 80,779,396,533.30, 121,169,094,799.95 and 38,937,983,721.30 is: 58,406,975,581.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,779,396,533.30 : 121,169,094,799.95 = 38,937,983,721.30 : x
  2. Step 2: Convert to fraction form
    80,779,396,533.30/121,169,094,799.95 = 38,937,983,721.30/x
  3. Step 3: Cross multiply
    80,779,396,533.30x = 121,169,094,799.95 × 38,937,983,721.30
  4. Step 4: Simplify right side
    80,779,396,533.30x = 4,718,080,240,845,109,854,208
  5. Step 5: Solve for x
    x = 4,718,080,240,845,109,854,208/80,779,396,533.30
  6. Step 6: Final answer
    x = 58,406,975,581.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.